GB580611A - Improvements in and relating to lubricating means for rotary valves for internal combustion engines - Google Patents

Improvements in and relating to lubricating means for rotary valves for internal combustion engines

Info

Publication number
GB580611A
GB580611A GB13008/44A GB1300844A GB580611A GB 580611 A GB580611 A GB 580611A GB 13008/44 A GB13008/44 A GB 13008/44A GB 1300844 A GB1300844 A GB 1300844A GB 580611 A GB580611 A GB 580611A
Authority
GB
United Kingdom
Prior art keywords
valve
oil groove
oil
duct
outlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB13008/44A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Briggs Manufacturing Co
Original Assignee
Briggs Manufacturing Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Briggs Manufacturing Co filed Critical Briggs Manufacturing Co
Publication of GB580611A publication Critical patent/GB580611A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
    • F01M9/10—Lubrication of valve gear or auxiliaries
    • F01M9/109—Lubrication of valve gear or auxiliaries of rotary slide or sleeve valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
    • F01L7/08—Rotary or oscillatory slide valve-gear or valve arrangements with conically or frusto-conically shaped valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

580,611. Rotary valves. BRIGGS MANUFACTURING CO. July 7, 1944, No. 13008. Convention date, Aug. 19, 1943. [Classes 7 (ii) and 7 (vi)] Oil, under pressure, for lubricating the bearing surface above the side post 49 of a rotary valve 25 of an internal combustion engine passes through an inlet 58, and passages 57, 55, in a cylinder head 28 in which the valve rotates, through a duct 59 in the head and an oil groove 60 on the surface of the outer end of the valve to outlet ducts 65, 66 and outlet passages 61, 62. When the inlet duct 59 registers intermittently with one of the positions 60a of the oil groove 60, oil is forced through the inclined portions 60c, portions 60b and out through the outlet ducts 65, 66 which simultaneously register with two of the oil groove portions 60b at opposite sides of the valve axis. For lubricating the bearing surface below the valve port the oil is forced through a duct 67, at the lower end of the inlet passage 55, a circumferential oil groove 68, formed on the inner conical seat 27 of the cylinder head, and an outlet duct 69 communicating with the outlet passage 61. The valve is biased to its seating by a compression spring 36. The cooling chamber 41 in the valve contains any suitable cooling medium such as metallic sodium. In a modification the bearing loads are taken by floating bearing rings above and below the valve port. In a further modification the lower oil groove 68 in the cylinder head is of zig-zag construction.
GB13008/44A 1943-08-19 1944-07-07 Improvements in and relating to lubricating means for rotary valves for internal combustion engines Expired GB580611A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US580611XA 1943-08-19 1943-08-19

Publications (1)

Publication Number Publication Date
GB580611A true GB580611A (en) 1946-09-13

Family

ID=22014412

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13008/44A Expired GB580611A (en) 1943-08-19 1944-07-07 Improvements in and relating to lubricating means for rotary valves for internal combustion engines

Country Status (1)

Country Link
GB (1) GB580611A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1141490B (en) * 1956-06-23 1962-12-20 F M Aspin Engines Ltd Internal combustion engine with a conical rotary valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1141490B (en) * 1956-06-23 1962-12-20 F M Aspin Engines Ltd Internal combustion engine with a conical rotary valve

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